US5065510A - Method for the manufacture of a light metal vehicle wheel - Google Patents

Method for the manufacture of a light metal vehicle wheel Download PDF

Info

Publication number
US5065510A
US5065510A US07/252,434 US25243488A US5065510A US 5065510 A US5065510 A US 5065510A US 25243488 A US25243488 A US 25243488A US 5065510 A US5065510 A US 5065510A
Authority
US
United States
Prior art keywords
rim
club
thickened portion
shaped thickened
radially inward
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
US07/252,434
Inventor
Friedrich Ostermann
Hans-Heinrich Plath
Winfried Griep
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vereinigte Aluminium Werke AG
Original Assignee
Vereinigte Aluminium Werke AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Vereinigte Aluminium Werke AG filed Critical Vereinigte Aluminium Werke AG
Assigned to VEREINIGTE ALUMINIUM-WERKE AKTIENGESELLSCHAFT, A CORP. OF WEST GERMANY reassignment VEREINIGTE ALUMINIUM-WERKE AKTIENGESELLSCHAFT, A CORP. OF WEST GERMANY ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: GRIEP, WINFRIED, PLATH, HANS-HEINRICH, OSTERMANN, FRIEDRICH
Application granted granted Critical
Publication of US5065510A publication Critical patent/US5065510A/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/26—Making other particular articles wheels or the like
    • B21D53/264—Making other particular articles wheels or the like wheels out of a single piece
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B21/00—Rims
    • B60B21/02—Rims characterised by transverse section
    • B60B21/021—Rims characterised by transverse section with inwardly directed flanges, i.e. the tyre-seat being reversed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B3/00—Disc wheels, i.e. wheels with load-supporting disc body
    • B60B3/06—Disc wheels, i.e. wheels with load-supporting disc body formed by casting
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49481—Wheel making
    • Y10T29/49492—Land wheel
    • Y10T29/49496—Disc type wheel
    • Y10T29/49503—Integral rim and disc making
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49481—Wheel making
    • Y10T29/49492—Land wheel
    • Y10T29/49524—Rim making
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49481—Wheel making
    • Y10T29/49492—Land wheel
    • Y10T29/49533—Hub making

Definitions

  • the present invention relates to a method and to equipment for the manufacture of a light metal vehicle wheel.
  • the rim horns which are undercut, must be formed during an additional step of manufacture. This extra step creates problems, especially when a free space between the rim horn and the wheel disc is very small. Even foldable supporting tools acting in this free space to support the rim horn cannot be used. If the premolded rim has the finished contour of a tread on its outside for use in case of a flat tire and also has its radially inner surfaces parallel to the axis of rotating the rim at the same time, i.e. without undercuts, then a considerable amount of material will be wasted in the form of chips when the tire seating surfaces are machined to form the undercuts and to direct the rim horns radially inward.
  • one aspect of the present invention resides in a method for manufacturing a light metal vehicle wheel which comprises premolding a rim with a club-shaped thickened portion which is directed axially outward and has an inside surface that is parallel to an axis of rotation of the rim, pushing radially inward the club-shaped thickening, and undercutting the inside surface of the club-shaped thickened portion next to rim horns.
  • the club-shaped thickened portion also has an outside surface having a tread for use in case of a flat tire.
  • the rim (workpiece) is inserted into the die and then the compression rings are moved toward each other, which presses the club-shaped portions of the rim radially inward.
  • the equipment also includes a supporting and centering ring which engages a drop base of the rim form-fittingly and supports drop base flanks of the rim and centers the rim in the die. Further, a bolt can be used to center the rim in the hub area at the same time.
  • an advantage of the present method is that merely a simple molding operation is added to the usual sequence of operations to form the wheel. Also, there is very little material scrap after machining by chip removal. Great accuracy of the rim's shape can be achieved through calibrated guidance of the compression rings and centering of the rim.
  • FIG. 1a a cross-sectional view of a rim premold in accordance the present invention
  • FIG. 1b shnows the rim of FIG. 1a after mold compression
  • FIG. 1c shows a cross-sectional view of the finished rim after machining by chip removal
  • FIG. 2 shows a cross-sectional view of the rim premold inserted in the die at the beginning of the mold oompression operation
  • FIG. 3 shows a cross-sectional view of the rim in the completely closed die
  • FIG. 4 shows a cross-sectional view of a compression ring
  • FIG. 5 shows a partial cross-sectional view of a support and centering ring for the rim premold.
  • FIG. 1a shows a rim 2 in a form prior to cold and/or hot molding and subsequent machining by chip removal.
  • the rim 2 has a drop base 4. Extending from each axial end of the drop base 4 is a respective transition area 6, 6'. Extending axially outward from radial ends of the transition areas 6, 6, are club-shaped thickened portions 3.
  • Each club-shaped thickened portion 3 has an outside surface with a tread 5 for use in case of a flat tire and has an inside surface 7 that is parallel to the axis of rotation of the rim 2.
  • the club-shaped thickened portions 3 are dimensioned such that only the minimum material required to form the respective rim horns 9 is present.
  • FIG. 1b shows the rim after mold compression has taken place.
  • the club-shaped thickened portions 3 are pushed so far radially inward that the tread 5 declines from the drop base 4 to the outer edge of the rim horns 9 at an angle of 1 to 10 degrees, preferably at about 5 degrees, relative to the axis of rotation of the rim 2.
  • FIG. 1c shows the final shape of the rim after machining by chip removal has taken place.
  • the tire seating surface 8 is machined in such a manner that the tread 5 and the tire seating surface 8 are parallel or nearly parallel to each other and the rim horns 9, which point inwardly, originate.
  • FIGS. 2 and 3 show progressive views of the mold compression operation, in which the die, with the rim 2 inserted, is in its initial position (open) per FIG. 2, and in its end position (completely closed) per FIG. 3.
  • the die used for the mold compression operation has upper and lower compression rings 11, which are shown in cross-section in FIG. 4.
  • Each compression ring 11 has a hole in its center having a funnel-shape formed by two concentric, truncated cone-shaped holes 10, 12 of different flare angles transiting into each other.
  • the diameter D 1 of hole 10 at the entry side of the compression ring 11 for rim 2 in premold form is slightly greater than or equal to the maximum outside diameter of the rim 2.
  • the inside diameter D 2 of the compression ring 11 is slightly greater than or equal to the rim diameter at the transition area 6 of the drop base 4 to the tread 5.
  • the flare angle of the hole 12 is between 2 and 24 degrees, preferably about 12 degrees. The flare angle should be selected 2 to 4 degrees greater than twice the amount of the desired angle between the tread 5 and the axis of the rim rotation, because the rim 2 in premold form (workpiece) will spring back by this amount when released.
  • FIGS. 2, 3 and 5 show a supporting and centering ring 13, which is required to support and center the rim 2 in the die.
  • This supporting and centering ring 13 has several, preferably three, segments that are cut axis-parallel. In the operative position of the supporting and centering ring 13, these segments engage form-fittingly the drop base 4 of the rim 2. These segments then contact the drop base bottom 15 and the drop base flanks 14, which adjoin the drop base bottom 15 via radii portions 16. The segments form a largely closed ring around the rim drop base 4.
  • the segments of the supporting and centering ring 13 have stop surfaces 17, which become contacted by the compression rings 11 of the die in the closed state.
  • the height H of the shallower hole 10 at the entry side of the compression rings 11 must be less than or equal to the vertical distance between stop surface 17 of the supporting and centering ring 13 and the transition area 6 between the drop base 4 and the tread 5 so that the die can be closed completely.
  • the stop surfaces 17 prevent the compression rings 11 from travelling closer toward each other than is required for closing the die completely.
  • a centering bolt may be used to center the rim 2 (workpiece) by contacting the bearing surface 1 of the fastening flange and the inside diametrical surface of the hole 18 of the rim 2 so as to fix these two surfaces into position.
  • the preferred light metal for use in the present invention comprises aluminum alloys. Wrought aluminum alloys are suitable as starting material for the manufacture of the vehicle wheels, which may be either forged or flow-turned. Preferably, alloys of the type aluminum magnesium silicon (AlMgSi), e.g. AlMgSiCu (6061), or alloys of the type aluminum magnesium manganese (AlMgMn) are used. To produce wheels by o casting, aluminum casting alloys of the type aluminum silicon magnesium (AlSiMg), e.g. AlSi7Mg (AA 356.0) may be used.
  • FIGS. 1-4 are all symmetric relative to their respective centerlines. While the foregoing description and drawings represent the preferred embodiments of the present invention, it will be understood that various changes and modifications may be made without departing from the spirit and scope of the present invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)

Abstract

A method and equipment for manufacturing a light metal vehicle wheel that has a rim drop base and a club-shaped thickened portion extending axially outward. The club-shaped portion has a tread on its outside surface for use in case of flat tire and has rim horns at its outer end. The method and equipment include pressing the rim horns radially inward by compression rings of a mold die. A radial inner surface of the club-shaped thickened portion is machined by chip removal so as to form an undercut next to the rim horn.

Description

BACKGROUND OF THE INVENTIQN
The present invention relates to a method and to equipment for the manufacture of a light metal vehicle wheel.
It is known to provide vehicle wheels with very good emergency running properties in the case of a flat tire, as is known from the German disclosure 32 44 046. Such vehicle wheels have rim horns directed radially inward, which enable the rim to support itself areally on the inside of the tire which is in a depressurized state. The rim has a surface formed with a tread for use in the case of a flat tire.
It is known to produce the rim for such light metal wheels by casting or forging. In both cases, the rim horns, which are undercut, must be formed during an additional step of manufacture. This extra step creates problems, especially when a free space between the rim horn and the wheel disc is very small. Even foldable supporting tools acting in this free space to support the rim horn cannot be used. If the premolded rim has the finished contour of a tread on its outside for use in case of a flat tire and also has its radially inner surfaces parallel to the axis of rotating the rim at the same time, i.e. without undercuts, then a considerable amount of material will be wasted in the form of chips when the tire seating surfaces are machined to form the undercuts and to direct the rim horns radially inward.
SUMMARY OF THE INVENTION
It is an object of the present invention to simplify the manufacture of a light metal vehicle wheel as much as possible, with the end products being shaped with great accuracy while wasting very little material during the machining process by chip removal. It is a further object to provide equipment for use in such manufacturing.
In keeping with these objects, and others which will become apparent later, one aspect of the present invention resides in a method for manufacturing a light metal vehicle wheel which comprises premolding a rim with a club-shaped thickened portion which is directed axially outward and has an inside surface that is parallel to an axis of rotation of the rim, pushing radially inward the club-shaped thickening, and undercutting the inside surface of the club-shaped thickened portion next to rim horns. The club-shaped thickened portion also has an outside surface having a tread for use in case of a flat tire.
It is another aspect of the present invention to provide equipment for manufacturing the wheel, the equipment comprising an upper and lower compression ring of a die. The rim (workpiece) is inserted into the die and then the compression rings are moved toward each other, which presses the club-shaped portions of the rim radially inward. The equipment also includes a supporting and centering ring which engages a drop base of the rim form-fittingly and supports drop base flanks of the rim and centers the rim in the die. Further, a bolt can be used to center the rim in the hub area at the same time.
Therefore, an advantage of the present method is that merely a simple molding operation is added to the usual sequence of operations to form the wheel. Also, there is very little material scrap after machining by chip removal. Great accuracy of the rim's shape can be achieved through calibrated guidance of the compression rings and centering of the rim.
For a better understanding of the present invention, reference is made to the following description and accompanying drawings, while the scope of the invention is set forth in the appended claims.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1a a cross-sectional view of a rim premold in accordance the present invention;
FIG. 1b shnows the rim of FIG. 1a after mold compression;
FIG. 1c shows a cross-sectional view of the finished rim after machining by chip removal;
FIG. 2 shows a cross-sectional view of the rim premold inserted in the die at the beginning of the mold oompression operation;
FIG. 3 shows a cross-sectional view of the rim in the completely closed die;
FIG. 4 shows a cross-sectional view of a compression ring; and
FIG. 5 shows a partial cross-sectional view of a support and centering ring for the rim premold.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
Turning now to the drawings, FIG. 1a shows a rim 2 in a form prior to cold and/or hot molding and subsequent machining by chip removal. The rim 2 has a drop base 4. Extending from each axial end of the drop base 4 is a respective transition area 6, 6'. Extending axially outward from radial ends of the transition areas 6, 6, are club-shaped thickened portions 3. Each club-shaped thickened portion 3 has an outside surface with a tread 5 for use in case of a flat tire and has an inside surface 7 that is parallel to the axis of rotation of the rim 2. The club-shaped thickened portions 3 are dimensioned such that only the minimum material required to form the respective rim horns 9 is present.
FIG. 1b shows the rim after mold compression has taken place. During mold compression, the club-shaped thickened portions 3 are pushed so far radially inward that the tread 5 declines from the drop base 4 to the outer edge of the rim horns 9 at an angle of 1 to 10 degrees, preferably at about 5 degrees, relative to the axis of rotation of the rim 2.
FIG. 1c shows the final shape of the rim after machining by chip removal has taken place. After mold compression is completed, the tire seating surface 8 is machined in such a manner that the tread 5 and the tire seating surface 8 are parallel or nearly parallel to each other and the rim horns 9, which point inwardly, originate.
FIGS. 2 and 3 show progressive views of the mold compression operation, in which the die, with the rim 2 inserted, is in its initial position (open) per FIG. 2, and in its end position (completely closed) per FIG. 3. The die used for the mold compression operation has upper and lower compression rings 11, which are shown in cross-section in FIG. 4. Each compression ring 11 has a hole in its center having a funnel-shape formed by two concentric, truncated cone- shaped holes 10, 12 of different flare angles transiting into each other.
Referring to FIG. 4, the diameter D1 of hole 10 at the entry side of the compression ring 11 for rim 2 in premold form is slightly greater than or equal to the maximum outside diameter of the rim 2. At the transition area 19 of the hole to hole 12, the inside diameter D2 of the compression ring 11 is slightly greater than or equal to the rim diameter at the transition area 6 of the drop base 4 to the tread 5. The flare angle of the hole 12 is between 2 and 24 degrees, preferably about 12 degrees. The flare angle should be selected 2 to 4 degrees greater than twice the amount of the desired angle between the tread 5 and the axis of the rim rotation, because the rim 2 in premold form (workpiece) will spring back by this amount when released.
FIGS. 2, 3 and 5 show a supporting and centering ring 13, which is required to support and center the rim 2 in the die. This supporting and centering ring 13 has several, preferably three, segments that are cut axis-parallel. In the operative position of the supporting and centering ring 13, these segments engage form-fittingly the drop base 4 of the rim 2. These segments then contact the drop base bottom 15 and the drop base flanks 14, which adjoin the drop base bottom 15 via radii portions 16. The segments form a largely closed ring around the rim drop base 4.
In the preferred embodiment, the segments of the supporting and centering ring 13 have stop surfaces 17, which become contacted by the compression rings 11 of the die in the closed state. The height H of the shallower hole 10 at the entry side of the compression rings 11 must be less than or equal to the vertical distance between stop surface 17 of the supporting and centering ring 13 and the transition area 6 between the drop base 4 and the tread 5 so that the die can be closed completely. The stop surfaces 17 prevent the compression rings 11 from travelling closer toward each other than is required for closing the die completely.
At the same time, a centering bolt may be used to center the rim 2 (workpiece) by contacting the bearing surface 1 of the fastening flange and the inside diametrical surface of the hole 18 of the rim 2 so as to fix these two surfaces into position.
The preferred light metal for use in the present invention comprises aluminum alloys. Wrought aluminum alloys are suitable as starting material for the manufacture of the vehicle wheels, which may be either forged or flow-turned. Preferably, alloys of the type aluminum magnesium silicon (AlMgSi), e.g. AlMgSiCu (6061), or alloys of the type aluminum magnesium manganese (AlMgMn) are used. To produce wheels by o casting, aluminum casting alloys of the type aluminum silicon magnesium (AlSiMg), e.g. AlSi7Mg (AA 356.0) may be used.
It should be understood that the cross-sectional views of FIGS. 1-4 are all symmetric relative to their respective centerlines. While the foregoing description and drawings represent the preferred embodiments of the present invention, it will be understood that various changes and modifications may be made without departing from the spirit and scope of the present invention.

Claims (12)

What is claimed is:
1. A method for manufacturing a wheel comprising the steps of:
pushing radially inward a club-shaped thickened portion of a rim so that as the club-shaped thickened portion extends axially outward to terminate at an outer end, the club-shaped thickened portion inclines radially inward, the club-shaped thickened portion having an outer surface formed as a tread for use during a flat; and
undercutting a portion of the radially inner surface of the club-shaped thickened portion next to the outer end of the rim so as to form the outer end into a rim horn that is thicker than said portion that is undercut and extends further inward radially than does said portion that is undercut.
2. The method as defined in claim 1, wherein said undercutting includes machining by chip removal.
3. The method as defined in claim 1, wherein pushing radially inward includes mold compressing.
4. The method as defined in claim 1; and further oomprising:
the rim.
5. The method as defined in claim 4, wherein the forming includes forging wrought aluminum alloys selected from the group consisting of AlMgSi and AlMgMn.
6. The method as defined in claim 4, wherein the forming includes fow-turning wrought aluminum alloys selected from the group consisting of AlMgSi and AlMgMn.
7. The method as defined in claim 4, wherein the forming includes casting an aluminum alloy of Al Si Mg.
8. The method as defined in claim 1, wherein the pushing radially inward includes compressing the club-shaped thickened portion to decline at an angle between 1 and 10 degrees as measured between the tread and the axis of rotation of the rim.
9. The method as defined in claim 8, wherein the step of compressing includes declining the angle at about 5 degrees as measured between the tread and the axis of rotation of the rim.
10. The method as defined in claim 1; and further comprising:
centering the rim during the radially inward pushing by centering in a hub area of the rim.
11. The method as defined in claim 1, wherein the step of pushing radially inward includes pushing the club-shaped thickened portion from a first position, in which a radial inner surface of the club-shaped thickened portion is parallel to an axis of rotation of the rim, to a second position, in which the radial inner surface inclines radially inward as the radial inner surface extends axially outward.
12. A method for manufacturing a wheel, comprising the steps of:
forming a rim to have a club-shaped thickened portion which extends axially outward to terminate at an outer end, the club-shaped thickened portion having an outer surface formed as a tread for use during a flat, the club-shaped thickened portion having a radial inner surface which is parallel to an axis of rotation of the rim; and
pushing radially inward the club-shaped thickened portion so that as the club-shaped thickened portion extends axially outward, the club-shaped thickened portion inclines radially inward such that the outer end extends further inward radially than a remainder of said club-shaped thickened portion.
US07/252,434 1987-10-02 1988-09-30 Method for the manufacture of a light metal vehicle wheel Expired - Fee Related US5065510A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3733348 1987-10-02
DE19873733348 DE3733348A1 (en) 1987-10-02 1987-10-02 METHOD AND DEVICE FOR PRODUCING A LIGHT METAL VEHICLE WHEEL

Publications (1)

Publication Number Publication Date
US5065510A true US5065510A (en) 1991-11-19

Family

ID=6337485

Family Applications (1)

Application Number Title Priority Date Filing Date
US07/252,434 Expired - Fee Related US5065510A (en) 1987-10-02 1988-09-30 Method for the manufacture of a light metal vehicle wheel

Country Status (5)

Country Link
US (1) US5065510A (en)
EP (1) EP0309747A3 (en)
JP (1) JPH01121133A (en)
DE (1) DE3733348A1 (en)
NO (1) NO884292L (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5729883A (en) * 1994-09-30 1998-03-24 Nissan Motor Co., Ltd. Method of producing a forging
US5794340A (en) * 1996-04-19 1998-08-18 Leico Gmbh & Co. Werkzeugmaschinenbau Method for the manufacture of a vehicle wheel
US20090273227A1 (en) * 2008-04-30 2009-11-05 Mark Tirado Deep lip vehicle rims
US8121392B2 (en) 2004-10-25 2012-02-21 Parata Systems, Llc Embedded imaging and control system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AUPO628197A0 (en) * 1997-04-17 1997-05-15 Simmons, Anthony Grant Joining metal components

Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE690890C (en) * 1936-12-19 1940-05-10 Richard Nier Press bench for profiling wheel rims
CH348137A (en) * 1956-04-23 1960-08-15 Goodyear Tire & Rubber Process for the production of an undivided drop center rim
CH390850A (en) * 1960-12-30 1965-04-30 Fischer Ag Georg Process for the production of a light metal steep shoulder drop center rim
DE1452614A1 (en) * 1962-11-07 1969-03-27 Dunlop Rubber Co Process for the production of vehicle wheels
US3750450A (en) * 1970-06-26 1973-08-07 Gkn Sankey Ltd Manufacture of articles
US3822458A (en) * 1969-02-20 1974-07-09 Fuchs Otto Method of making wheels
GB1388572A (en) * 1972-01-26 1975-03-26 Dimo Holdings Wheels
US3964144A (en) * 1973-10-16 1976-06-22 Georg Fischer Aktiengesellschaft Cast one-piece annular rim member for a vehicle wheel
US4048828A (en) * 1975-04-09 1977-09-20 Forgeal, Societe Pour Le Forgeage Et L'estampage Des Alliages Legers Process for manufacturing monobloc wheels by die stamping and rotary extrusion
US4275932A (en) * 1979-06-08 1981-06-30 Goodyear Aerospace Corporation Non-frangible wheel
US4436133A (en) * 1980-11-13 1984-03-13 George Fischer Ltd. Cast vehicle wheel rim
DE3244046A1 (en) * 1982-11-27 1984-05-30 Continental Gummi-Werke Ag, 3000 Hannover VEHICLE WHEEL
DE3336239A1 (en) * 1983-10-05 1985-04-18 Continental Gummi-Werke Ag, 3000 Hannover Vehicle wheel with cover ring
US4561275A (en) * 1983-05-24 1985-12-31 Tomy Kogyo Kabushiki Kaisha Method of shaping and machining disc wheel and equipment therefor
EP0183243A1 (en) * 1984-11-27 1986-06-04 Norsk Hydro A/S Process for sizing wheel rims
US4624038A (en) * 1983-09-16 1986-11-25 Walther William D Method of producing motor vehicle wheels
EP0205867A1 (en) * 1985-06-13 1986-12-30 ALUMINIA S.p.A. Light-alloy wheel with differentiated thickness and process to obtain it

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6046823A (en) * 1984-03-05 1985-03-13 Kobe Steel Ltd Manufacture of car wheel made of aluminum or aluminum alloy

Patent Citations (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE690890C (en) * 1936-12-19 1940-05-10 Richard Nier Press bench for profiling wheel rims
CH348137A (en) * 1956-04-23 1960-08-15 Goodyear Tire & Rubber Process for the production of an undivided drop center rim
CH390850A (en) * 1960-12-30 1965-04-30 Fischer Ag Georg Process for the production of a light metal steep shoulder drop center rim
DE1452614A1 (en) * 1962-11-07 1969-03-27 Dunlop Rubber Co Process for the production of vehicle wheels
US3822458A (en) * 1969-02-20 1974-07-09 Fuchs Otto Method of making wheels
US3750450A (en) * 1970-06-26 1973-08-07 Gkn Sankey Ltd Manufacture of articles
GB1388572A (en) * 1972-01-26 1975-03-26 Dimo Holdings Wheels
US3964144A (en) * 1973-10-16 1976-06-22 Georg Fischer Aktiengesellschaft Cast one-piece annular rim member for a vehicle wheel
US4048828A (en) * 1975-04-09 1977-09-20 Forgeal, Societe Pour Le Forgeage Et L'estampage Des Alliages Legers Process for manufacturing monobloc wheels by die stamping and rotary extrusion
US4275932A (en) * 1979-06-08 1981-06-30 Goodyear Aerospace Corporation Non-frangible wheel
US4436133A (en) * 1980-11-13 1984-03-13 George Fischer Ltd. Cast vehicle wheel rim
DE3244046A1 (en) * 1982-11-27 1984-05-30 Continental Gummi-Werke Ag, 3000 Hannover VEHICLE WHEEL
US4597426A (en) * 1982-11-27 1986-07-01 Continental Gummi-Werke Aktiengesellschaft Vehicle tire and rim having tire bead rotatable into assembled condition
US4561275A (en) * 1983-05-24 1985-12-31 Tomy Kogyo Kabushiki Kaisha Method of shaping and machining disc wheel and equipment therefor
US4624038A (en) * 1983-09-16 1986-11-25 Walther William D Method of producing motor vehicle wheels
DE3336239A1 (en) * 1983-10-05 1985-04-18 Continental Gummi-Werke Ag, 3000 Hannover Vehicle wheel with cover ring
EP0183243A1 (en) * 1984-11-27 1986-06-04 Norsk Hydro A/S Process for sizing wheel rims
US4708749A (en) * 1984-11-27 1987-11-24 Ardal Og Sunndal Verk A.S. Method of calibrating vehicle wheels to a finished size
EP0205867A1 (en) * 1985-06-13 1986-12-30 ALUMINIA S.p.A. Light-alloy wheel with differentiated thickness and process to obtain it

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
Patent Abstracts of Japan, Band 9, No. 176 (M 398) 1899 , Jul. 20, 1985; JP A 60 46 823 (Kobe Seikosho K.K.) 13 03 1985. *
Patent Abstracts of Japan, Band 9, No. 176 (M-398) [1899], Jul. 20, 1985; JP-A-60 46 823 (Kobe Seikosho K.K.) 13-03-1985.

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5729883A (en) * 1994-09-30 1998-03-24 Nissan Motor Co., Ltd. Method of producing a forging
US5794340A (en) * 1996-04-19 1998-08-18 Leico Gmbh & Co. Werkzeugmaschinenbau Method for the manufacture of a vehicle wheel
US8121392B2 (en) 2004-10-25 2012-02-21 Parata Systems, Llc Embedded imaging and control system
US20090273227A1 (en) * 2008-04-30 2009-11-05 Mark Tirado Deep lip vehicle rims

Also Published As

Publication number Publication date
NO884292L (en) 1989-04-03
EP0309747A3 (en) 1990-06-27
NO884292D0 (en) 1988-09-28
DE3733348A1 (en) 1989-04-13
JPH01121133A (en) 1989-05-12
EP0309747A2 (en) 1989-04-05

Similar Documents

Publication Publication Date Title
US7721431B2 (en) Method of making a piston
US20120274128A1 (en) Process for manufacturing a light alloy wheel rim and wheel rim resulting therefrom
US20080143170A1 (en) Light-Metal Wheel
US6282788B1 (en) Vehicle wheel and method for producing same
CA1077251A (en) Method of producing a vehicle wheel
US6637317B1 (en) Piston for a hydraulic pressure chamber
GB2220623A (en) Light metal wheel rim
US20210370386A1 (en) Vehicle wheel disc and manufacturing method of vehicle wheel disc
US5065510A (en) Method for the manufacture of a light metal vehicle wheel
KR880009709A (en) Die and Forging Method of Forging Ring Rolling Preform of Ring Gear
SK279465B6 (en) Method for production of a compact vehicle wheel made of light metal
CS236451B2 (en) Method of metal wheels making from one piece for vehicles
CN1325288C (en) Built-up automobile/motorbike wheel of light alloy
US20230042862A1 (en) Method for producing a motor vehicle rim made of aluminium or an aluminium alloy for a wheel of a motor vehicle and corresponding motor vehicle rim
US6473967B1 (en) Method for producing a fabricated vehicle wheel
US4055068A (en) Process for manufacturing monobloc vehicle wheels
US6785962B2 (en) Method for producing a full face fabricated vehicle wheel
US7108332B2 (en) Vehicle wheel having a milled drain slot
JPH01257601A (en) Wheel for automobile
US4035891A (en) Method of forging and press-forming aluminum wheel
JP2000142007A (en) Light-weighted aluminum wheel and manufacture thereof
US6374493B1 (en) Wheel casting and wheel assembly
JP2639787B2 (en) Two-piece wheels for cars
US6463660B1 (en) Process for forming a vehicle wheel disc directly upon a vehicle wheel rim
JPS6145949Y2 (en)

Legal Events

Date Code Title Description
AS Assignment

Owner name: VEREINIGTE ALUMINIUM-WERKE AKTIENGESELLSCHAFT, A C

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNORS:OSTERMANN, FRIEDRICH;PLATH, HANS-HEINRICH;GRIEP, WINFRIED;REEL/FRAME:005069/0427;SIGNING DATES FROM 19890406 TO 19890407

FEPP Fee payment procedure

Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

REMI Maintenance fee reminder mailed
LAPS Lapse for failure to pay maintenance fees
FP Lapsed due to failure to pay maintenance fee

Effective date: 19951122

STCH Information on status: patent discontinuation

Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362